CN103791445A - Design method of light reflection cup of large-angle LED (Light Emitting Diode) bulb lamp - Google Patents
Design method of light reflection cup of large-angle LED (Light Emitting Diode) bulb lamp Download PDFInfo
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- CN103791445A CN103791445A CN201210428008.9A CN201210428008A CN103791445A CN 103791445 A CN103791445 A CN 103791445A CN 201210428008 A CN201210428008 A CN 201210428008A CN 103791445 A CN103791445 A CN 103791445A
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Abstract
The invention discloses a design method of a light reflection cup of a large-angle LED (Light Emitting Diode) bulb lamp. The design method comprises arranging light sources which are arranged in the LED bulb lamp on the inner side and the outer side of the light reflection cup respectively to enable the light sources and the bottom surface of the light reflection cup to be located on the same horizontal plane; performing light distribution division with a single light source which is arranged outside as a benchmark and performing analysis on the plane the single light source passing through; performing equal luminous flux subdivision on the irradiation light of the light source to enable every small portion to irradiate on a corresponding object; calculating a series of points through an MATLAB according to the law of refraction and reflection, fitting the points in PROE software and performing modeling and exporting a model; importing the obtained model into optical software TRACEPRO and performing optical simulation validation; outputting the final model if a validation result meets the design requirements. According to the light reflection cup of the large-angle LED bulb lamp, the light emitting angle of the LED bulb lamp can be increased, the light distribution is uniform, the efficiency is high, the light emitting angle of the LED bulb lamp can be greatly increased due to the light reflection cup which is arranged on a substrate of the traditional plane arrangement LED bulb lamp, the structure is simple, and assembly and production are convenient.
Description
[technical field]
The present invention relates to the method for designing of optical element, relate in particular to a kind of large lighting angle LED bulb lamp of energy-conserving and environment-protective.
[background technology]
Conventional incandescent power consumption is high, the life-span is short, and under the overall situation of global resources anxiety, the power consumption of LED bulb lamp is low, the life-span long and not containing environmentally harmful Pb, the harmful elements such as Hg, are the Novel energy-saving lamps that substitutes conventional incandescent bulb; The LED lighting angle of horizontal layout is generally no more than 120 degree, even if the lighting angle of the LED bulb lamp of the upper diffraction lamp shade of cover is generally also no more than 150 degree, range of exposures is narrow, and dark space, light fixture top is larger, has certain defect; The LED lighting angle of non-planar arrangement generally can exceed 300 degree, but is limited to small-power, and has brought certain difficulty to assembling, volume production.Under traditional secondary optical design method, the lighting angle of LED bulb lamp can reach 300 degree, but light efficiency is low, luminous intensity distribution is poor.
[summary of the invention]
The object of the invention is to overcome deficiency of the prior art, the reflector method for designing of the large-angle LED bulb lamp that a kind of lighting angle is large, efficiency is high, luminous intensity distribution is suitable with incandescent lamp is provided.
The object of the present invention is achieved like this, and described method for designing comprises the steps:
(1) arranging of light source: the light source in LED bulb lamp is arranged in respectively inner side and the outside of reflector;
(2) make the bottom surface of light source and reflector in same level, then set according to actual needs the horizontal range in reflector bottom osculum diameter, external light source center and reflector outside and the horizontal range of internal light source center and reflector inner side;
(3) carry out luminous intensity distribution division take single outside light source as benchmark, in the plane of crossing this single light source, analyze, the light of described this single light source divides by range of exposures, there is lamp front-reflection light, lamp back reflection light and direct projection light, its shared angle is respectively 0 °-θ 1, θ 1-θ 2, θ 2-180 °, and beats respectively the diverse location place at target luminous intensity distribution face; Wherein, the span of θ 1 is 50 °-80 °, and the span of θ 2 is 120 °-140 °;
(4) irradiation light of single light source of described outside is waited to luminous flux segmentation, its every fraction is beaten respectively in corresponding target;
(5) according to catadioptric law, utilize MATLAB to calculate a series of point, in PROE or SOLIDWORKS software, will put matching afterwards, last modeling reduced model;
(6) model obtaining in step (5) imports to and in optics software TRACEPRO or LIGHTTOOLS, carries out optical analog checking;
(7) the result of verifying in optics TRACEPRO or LIGHTTOOLS exports final mask as met designing requirement, as be designed with deviation, repeat above-mentioned steps (1)-(6) until meet designing requirement.
Preferably, the 1-4 that described reflector external light source quantity is internal light source quantity doubly.
Preferably, the outside horizontal range of described external light source center and reflector bottom is 2-5mm, and horizontal range is 2-5mm inside described internal light source center and reflector.
Compared with prior art, the invention has the beneficial effects as follows: the lighting angle that finally can strengthen LED bulb lamp, luminous intensity distribution is even, efficiency is high, on the substrate of LED bulb lamp of arranging in conventional planar, reflector of the present invention is set, sets the distance between reflector external light source and reflector, the lighting angle that is no more than the LED bulb lamp of 150 degree with script lighting angle can be increased, and simple in structure, assembling and convenient for production.
[accompanying drawing explanation]
Fig. 1 is method for designing schematic diagram of the present invention;
Fig. 2 is reflecting cup structure schematic diagram of the present invention;
Fig. 3 is the structural representation that has used wide-angle bulb lamp of the present invention;
Fig. 4 is the distribution curve flux figure of the embodiment of the present invention five.
[specific embodiment]
Below in conjunction with the drawings and the specific embodiments, the invention will be further described:
As shown in Figure 1 to Figure 3, the reflector method for designing of large-angle LED bulb lamp of the present invention, described method for designing comprises the steps:
(1) arranging of light source: the light source in LED bulb lamp is arranged in respectively inner side and the outside of reflector; And be applied to according to reflector in the LED bulb lamp of different lighting angles, set the quantity of external light source and the internal light source of reflector, reflector external light source quantity is 1-4 times of internal light source quantity.
(2) bottom surface of light source and reflector is in same level, in practical application, this horizontal plane is the end face of substrate, set according to actual needs the osculum diameter of reflector bottom, the horizontal range of determining afterwards external light source center and reflector outside is 2-5mm, and the inner side horizontal range of internal light source center and reflector is 2-5mm.
(3) carry out luminous intensity distribution division take single outside light source K as benchmark, in the plane of crossing this light source K, analyze, the light of described this light source K divides by range of exposures, there is lamp front-reflection light L1, lamp back reflection light L2 and direct projection light L3, its shared angle is respectively 0 °-θ 1, θ 1-θ 2, θ 2-180 °, and light after reflection and direct projection light are beaten respectively the diverse location place at target luminous intensity distribution face.Between one-sided 50 °-60 ° of 0 ° of angle light KH1 reflection ray H1B1 homed on its target luminous intensity distribution after a H1; The light KH2 of θ 1 angle is through one-sided 90 ° of some H2 back reflection light H2B2 homed on its target luminous intensity distribution; One-sided 135 ° of reflection ray H3B3 homed on its target luminous intensity distribution after a H3; One-sided 45 °-60 ° of direct projection light KH3 homed on its target luminous intensity distribution; Wherein, the span of θ 1 is 50 °-80 °, and the span of θ 2 is 120 °-140 °, and H3 point is the upper extreme point of reflector section.
(4) irradiation light of described light source K is waited to luminous flux segmentation, its every fraction is beaten respectively in corresponding target, set up one-to-one relationship, and set up equation according to corresponding relation.
(5) according to catadioptric law, utilize MATLAB to calculate a series of point, a matching is formed afterwards to the one-sided section curve section H1H2H3 of reflector in PROE or SOLIDWORKS software, last modeling reduced model.
(6) model obtaining in step (5) imports to and in optics software TRACEPRO or LIGHTTOOLS, carries out optical analog checking.
(7) the result of verifying in optics TRACEPRO or LIGHTTOOLS exports final mask as met designing requirement, as be designed with deviation, repeat above-mentioned steps (1)-(6) until meet designing requirement.
The reflector 1 designing through above-mentioned steps, its bottom osculum is arranged on the substrate 2 in LED bulb lamp, described substrate 2 is planar structure, inner side and outside in reflector 1 on substrate 2 are respectively arranged with internal light source and external light source, when light source works, the light that external light source sends is through the outside cambered surface reflection of reflector 1, sidepiece and the rear portion of the even directive LED of reflection ray bulb lamp, formation wide-angle is luminous, the lighting angle that has solved traditional plane arrangement type LED bulb lamp is no more than the problem of 150 degree, and the rear portion at LED bulb lamp can not form blackening, light distribution effect is good.
Embodiment mono-
By described method for designing, lighting angle is in the large-angle LED bulb lamp of 220 degree, light source adopts Samsung 2323, internal light source and external light source quantity are respectively 6 and 16, the horizontal range of external light source center and reflector bottom outside is 2.1mm, the horizontal range of internal light source center and reflector bottom inside is 3mm, it is respectively 0 °-70 ° of lamp front-reflection light that single outside light source is divided angle, lamp back reflection light is 70 °-135 °, direct projection light is 135 °-180 °, lamp front-reflection light and lamp back reflection light after reflection respectively one-sided with target luminous intensity distribution 55 °-90 ° and 90 °-135 ° corresponding one by one, 45 °-90 ° one-sided with target luminous intensity distribution of direct projection light are corresponding, above-mentioned establishing to the one-sided light of target luminous intensity distribution is divided into etc. to 500 parts of luminous fluxes, set up equation programmes and calculates 500 groups of discrete data points in MATLAB software, import afterwards in PROE software and carry out curve fitting, modeling, save as SAT form, set light source position, a number, surface properties at TPACEPRO, set up substrate and be set to absorb completely, import model, be set to minute surface, carry out light simulation analysis, luminous intensity distribution is even, 220 ° of left and right of lighting angle, and luminous efficiency is 0.914, obtaining reflector parameter is: size height is 9.12mm, and osculum diameter is 13mm, and large mouthful of upper end diameter is 25.1mm.
Embodiment bis-
By described method for designing, lighting angle is in the large-angle LED bulb lamp of 240 degree, light source adopts Samsung 2323, internal light source and external light source quantity are respectively 8 and 16, the horizontal range of external light source center and reflector bottom outside is 3mm, the horizontal range of internal light source center and reflector bottom inside is 2mm, it is respectively 0 °-52 ° of lamp front-reflection light that single outside light source is divided angle, lamp back reflection light is 52 °-123 °, direct projection light is 123 °-180 °, lamp front-reflection light and lamp back reflection light after reflection respectively one-sided with target luminous intensity distribution 52 °-90 ° and 90 °-135 ° corresponding one by one, 57 °-90 ° one-sided with target luminous intensity distribution of direct projection light are corresponding, above-mentioned establishing to the one-sided light of target luminous intensity distribution is divided into etc. to 500 parts of luminous fluxes, set up equation programmes and calculates 500 groups of discrete data points in MATLAB software, import afterwards in PROE software and carry out curve fitting, modeling, save as SAT form, set light source position, a number, surface properties at TPACEPRO, set up substrate and be set to absorb completely, import model, be set to minute surface, carry out light simulation analysis, luminous intensity distribution is even, 240 ° of left and right of lighting angle, and luminous efficiency is 0.895, obtaining reflector parameter is: size height is 8.91mm, and osculum diameter is 12mm, and large mouthful of upper end diameter is 29.8mm.
Embodiment tri-
By described method for designing, lighting angle is in the large-angle LED bulb lamp of 260 degree, light source adopts Samsung 2323, internal light source and external light source quantity are respectively 12 and 34, the horizontal range of external light source center and reflector bottom outside is 4.1mm, the horizontal range of internal light source center and reflector bottom inside is 4.2mm, it is respectively 0 °-65 ° of lamp front-reflection light that single outside light source is divided angle, lamp back reflection light is 65 °-131 °, direct projection light is 131 °-180 °, lamp front-reflection light and lamp back reflection light after reflection respectively one-sided with target luminous intensity distribution 51 °-90 ° and 90 °-135 ° corresponding one by one, 49 °-90 ° one-sided with target luminous intensity distribution of direct projection light are corresponding, above-mentioned establishing to the one-sided light of target luminous intensity distribution is divided into etc. to 500 parts of luminous fluxes, set up equation programmes and calculates 500 groups of discrete data points in MATLAB software, import afterwards in PROE software and carry out curve fitting, modeling, save as SAT form, set light source position, a number, surface properties at TPACEPRO, set up substrate and be set to absorb completely, import model, be set to minute surface, carry out light simulation analysis, luminous intensity distribution is even, 260 ° of left and right of lighting angle, and luminous efficiency is 0.901, obtaining reflector parameter is: size height is 9.31mm, and osculum diameter is 13.2mm, and large mouthful of upper end diameter is 25.4mm.
Embodiment tetra-
By described method for designing, lighting angle is in the large-angle LED bulb lamp of 280 degree, light source adopts Samsung 2323, internal light source and external light source quantity are respectively 10 and 40, the horizontal range of external light source center and reflector bottom outside is 4.8mm, the horizontal range of internal light source center and reflector bottom inside is 4.3mm, it is respectively 0 °-73 ° of lamp front-reflection light that single outside light source is divided angle, lamp back reflection light is 73 °-135 °, direct projection light is 135 °-180 °, lamp front-reflection light and lamp back reflection light after reflection respectively one-sided with target luminous intensity distribution 50 °-90 ° and 90 °-135 ° corresponding one by one, 45 °-90 ° one-sided with target luminous intensity distribution of direct projection light are corresponding, above-mentioned establishing to the one-sided light of target luminous intensity distribution is divided into etc. to 500 parts of luminous fluxes, set up equation programmes and calculates 500 groups of discrete data points in MATLAB software, import afterwards in PROE software and carry out curve fitting, modeling, save as SAT form, set light source position, a number, surface properties at TPACEPRO, set up substrate and be set to absorb completely, import model, be set to minute surface, carry out light simulation analysis, luminous intensity distribution is even, 280 ° of left and right of lighting angle, and luminous efficiency is 0.904, obtaining reflector parameter is: size height is 9.03mm, and osculum diameter is 13mm, and large mouthful of upper end diameter is 24.55mm.
Embodiment five
By described method for designing, lighting angle is in the large-angle LED bulb lamp of 300 degree, light source adopts Samsung 2323, internal light source and external light source quantity are respectively 12 and 36, the horizontal range of external light source center and reflector bottom outside is 3mm, the horizontal range of internal light source center and reflector bottom inside is 4mm, it is respectively 0 °-75.5 ° of lamp front-reflection light that single outside light source is divided angle, lamp back reflection light is 75.5 °-138 °, direct projection light is 138 °-180 °, lamp front-reflection light and lamp back reflection light after reflection respectively one-sided with target luminous intensity distribution 60 °-90 ° and 90 °-135 ° corresponding one by one, direct projection light is in 45 ° of one-sided-90 ° of correspondences of target luminous intensity distribution, above-mentioned establishing to the one-sided light of target luminous intensity distribution is divided into etc. to 500 parts of luminous fluxes, set up equation programmes and calculates 500 groups of discrete data points in MATLAB software, import afterwards in PROE software and carry out curve fitting, modeling, save as SAT form, set light source position, a number, surface properties at TPACEPRO, set up substrate and be set to absorb completely, import model, be set to minute surface, carry out light simulation analysis, as shown in Figure 4, luminous intensity distribution is even, 300 ° of left and right of lighting angle, and luminous efficiency is 0.923, obtaining reflector parameter is: size height is 9.15mm, and osculum diameter is 13mm, and large mouthful of upper end diameter is 24.8mm.
Embodiment six
By described method for designing, lighting angle is in the large-angle LED bulb lamp of 320 degree, light source adopts Samsung 2323, internal light source and external light source quantity are respectively 8 and 32, the horizontal range of external light source center and reflector bottom outside is 3.2mm, the horizontal range of internal light source center and reflector bottom inside is 4mm, it is respectively 0 °-75.5 ° of lamp front-reflection light that single outside light source is divided angle, lamp back reflection light is 75.5 °-138 °, direct projection light is 138 °-180 °, lamp front-reflection light and lamp back reflection light after reflection respectively one-sided with target luminous intensity distribution 60 °-90 ° and 90 °-135 ° corresponding one by one, 45 °-90 ° one-sided with target luminous intensity distribution of direct projection light are corresponding, above-mentioned establishing to the one-sided light of target luminous intensity distribution is divided into etc. to 500 parts of luminous fluxes, set up equation programmes and calculates 500 groups of discrete data points in MATLAB software, import afterwards in PROE software and carry out curve fitting, modeling, save as SAT form, set light source position, a number, surface properties at TPACEPRO, set up substrate and be set to absorb completely, import model, be set to minute surface, carry out light simulation analysis, luminous intensity distribution is even, 320 ° of left and right of lighting angle, and luminous efficiency is 0.879, obtaining reflector parameter is: size height is 9.12mm, and osculum diameter is 14.1mm, and large mouthful of upper end diameter is 26.8mm.
The announcement of book and instruction according to the above description, those skilled in the art in the invention can also carry out suitable change and modification to above-mentioned embodiment.Therefore, the present invention is not limited to the specific embodiment disclosed and described above, also should fall in the protection domain of claim of the present invention modifications and changes more of the present invention.In addition,, although used some specific terms in this description, these terms just for convenience of description, do not form any restriction to the present invention.
Claims (3)
1. a reflector method for designing for large-angle LED bulb lamp, is characterized in that, described method for designing comprises the steps:
(1) arranging of light source: the light source in LED bulb lamp is arranged in respectively inner side and the outside of reflector;
(2) make the bottom surface of light source and reflector in same level, then set according to actual needs the horizontal range in reflector bottom osculum diameter, external light source center and reflector outside and the horizontal range of internal light source center and reflector inner side;
(3) carry out luminous intensity distribution division take single outside light source as benchmark, in the plane of crossing this single light source, analyze, the light of described this single light source divides by range of exposures, there is lamp front-reflection light, lamp back reflection light and direct projection light, its shared angle is respectively 0 °-θ 1, θ 1-θ 2, θ 2-180 °, and beats respectively the diverse location place at target luminous intensity distribution face; Wherein, the span of θ 1 is 50 °-80 °, and the span of θ 2 is 120 °-140 °;
(4) irradiation light of single light source of described outside is waited to luminous flux segmentation, its every fraction is beaten respectively in corresponding target;
(5) according to catadioptric law, utilize MATLAB to calculate a series of point, in PROE or SOLIDWORKS software, will put matching afterwards, last modeling reduced model;
(6) model obtaining in step (5) imports to and in optics software TRACEPRO or LIGHTTOOLS, carries out optical analog checking;
(7) the result of verifying in optics TRACEPRO or LIGHTTOOLS exports final mask as met designing requirement, as be designed with deviation, repeat above-mentioned steps (1)-(6) until meet designing requirement.
2. the reflector method for designing of large-angle LED bulb lamp according to claim 1, is characterized in that: the 1-4 that described reflector external light source quantity is internal light source quantity doubly.
3. the reflector method for designing of large-angle LED bulb lamp according to claim 1, it is characterized in that: the outside horizontal range of described external light source center and reflector bottom is 2-5mm, horizontal range is 2-5mm inside described internal light source center and reflector.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104462648A (en) * | 2014-11-05 | 2015-03-25 | 佛山克莱汽车照明股份有限公司 | LED lamp design verification method and LED lamp design verification method application to externally-hung lamp or headlamp |
CN106594542A (en) * | 2016-11-25 | 2017-04-26 | 横店集团得邦照明股份有限公司 | LED directional lamp and implementing method thereof |
CN109241548A (en) * | 2018-06-30 | 2019-01-18 | 上海均诺电子有限公司 | A kind of wide-angle bending uniformly light-emitting atmosphere lamp implementation method |
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CN101871619A (en) * | 2010-06-29 | 2010-10-27 | 广州大学 | Free-form surface LED street lamp optical design method |
CN102278652A (en) * | 2011-09-15 | 2011-12-14 | 浙江世明光学科技有限公司 | Light emitting diode (LED) ball-bulb lamp |
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2012
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101871619A (en) * | 2010-06-29 | 2010-10-27 | 广州大学 | Free-form surface LED street lamp optical design method |
CN102278652A (en) * | 2011-09-15 | 2011-12-14 | 浙江世明光学科技有限公司 | Light emitting diode (LED) ball-bulb lamp |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104462648A (en) * | 2014-11-05 | 2015-03-25 | 佛山克莱汽车照明股份有限公司 | LED lamp design verification method and LED lamp design verification method application to externally-hung lamp or headlamp |
CN104462648B (en) * | 2014-11-05 | 2018-03-02 | 佛山克莱汽车照明股份有限公司 | A kind of LED design and verification method and its application in outer pendant lamp and headlight |
CN106594542A (en) * | 2016-11-25 | 2017-04-26 | 横店集团得邦照明股份有限公司 | LED directional lamp and implementing method thereof |
CN109241548A (en) * | 2018-06-30 | 2019-01-18 | 上海均诺电子有限公司 | A kind of wide-angle bending uniformly light-emitting atmosphere lamp implementation method |
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Application publication date: 20140514 |